Area Code 423 is located in the state of Texas.
The Texas`s major city is Chattanooga
The state of Texas is in Eastern / Central timezone.
More important cities in Texas:
Bristol, TN; Chattanooga, TN; Cleveland, TN; East Ridge, TN; Johnson City, TN; Kingsport, TN; Morristown, TN;
Prefixes within the 423 Area Code what we have in our database.
| Prefix | Primary City | County | Usage |
| (423) 200 | Morristown, TN | Hamblen | Landline |
| (423) 201 | La Follette, TN | Campbell | Landline |
| (423) 202 | Johnson City, TN | Washington | Landline |
| (423) 206 | Morristown, TN | Hamblen | Landline |
| (423) 207 | Kingsport, TN | Washington | Landline |
| (423) 208 | Chattanooga, TN | Not filled | Unknown |
| (423) 209 | Chattanooga, TN | Hamilton | Landline |
| (423) 210 | Tellico Plains, TN | Monroe | Cell Number |
| (423) 212 | Blountville, TN | Sullivan | Landline |
| (423) 213 | Johnson City, TN | Washington | Cell Number |
| (423) 214 | Englewood, TN | Mcminn | Cell Number |
| (423) 215 | Oneida, TN | Scott | Cell Number |
| (423) 216 | Benton, TN | Polk | Landline |
| (423) 217 | Bristol, TN | Sullivan | Landline |
| (423) 218 | Johnson City, TN | Washington | Landline |
| (423) 219 | Copperhill, TN | Polk | Landline |
| (423) 220 | Johnson City, TN | Washington | Landline |
| (423) 221 | Chattanooga, TN | Hamilton | Landline |
| (423) 222 | Morristown, TN | Hamblen | Landline |
| (423) 223 | Oneida, TN | Not filled | Unknown |
| (423) 224 | Kingsport, TN | Sullivan | Landline |
| (423) 225 | Benton, TN | Not filled | Unknown |
| (423) 226 | Church Hill, TN | Not filled | Unknown |
| (423) 227 | Chattanooga, TN | Hamilton | Cell Number |
| (423) 228 | South Pittsburg, TN | Marion | Landline |
| (423) 229 | Kingsport, TN | Sullivan | Landline |
| (423) 230 | Kingsport, TN | Sullivan | Landline |
| (423) 231 | Morristown, TN | Hamblen | Cell Number |
| (423) 232 | Johnson City, TN | Washington | Landline |
| (423) 233 | Johnson City, TN | Washington | Landline |
| (423) 234 | Surgoinsville, TN | Hawkins | Landline |
| (423) 235 | Bulls Gap, TN | Hawkins | Landline |
| (423) 236 | Apison, TN | Hamilton | Landline |
| (423) 237 | Newport, TN | Cocke | Cell Number |
| (423) 238 | Ooltewah, TN | Hamilton | Landline |
| (423) 239 | Kingsport, TN | Sullivan | Landline |
| (423) 240 | Chattanooga, TN | Hamilton | Cell Number |
| (423) 241 | Copperhill, TN | Polk | Cell Number |
| (423) 242 | Chattanooga, TN | Hamilton | Landline |
| (423) 243 | Chattanooga, TN | Hamilton | Landline |
| (423) 244 | Cleveland, TN | Bradley | Landline |
| (423) 245 | Kingsport, TN | Sullivan | Landline |
| (423) 246 | Kingsport, TN | Sullivan | Landline |
| (423) 247 | Kingsport, TN | Sullivan | Landline |
| (423) 248 | Newport, TN | Cocke | Cell Number |
| (423) 249 | Cumberland Gap, TN | Claiborne | Landline |
| (423) 250 | Not filled | Not filled | Unknown |
| (423) 252 | Athens, TN | Mcminn | Landline |
| (423) 253 | Tellico Plains, TN | Monroe | Landline |
| (423) 254 | Morristown, TN | Hamblen | Landline |
| (423) 255 | Chattanooga, TN | Hamilton | Landline |
| (423) 256 | Church Hill, TN | Hawkins | Landline |
| (423) 257 | Limestone, TN | Washington | Landline |
| (423) 258 | Morristown, TN | Hamblen | Cell Number |
| (423) 259 | New Tazewell, TN | Claiborne | Cell Number |
| (423) 260 | Chattanooga, TN | Not filled | Unknown |
| (423) 261 | Farner, TN | Polk | Landline |
| (423) 262 | Johnson City, TN | Washington | Landline |
| (423) 263 | Etowah, TN | Mcminn | Landline |
| (423) 265 | Chattanooga, TN | Hamilton | Landline |
| (423) 266 | Chattanooga, TN | Hamilton | Landline |
| (423) 267 | Chattanooga, TN | Hamilton | Landline |
| (423) 268 | Morristown, TN | Hamblen | Landline |
| (423) 269 | Chattanooga, TN | Hamilton | Landline |
| (423) 271 | Sweetwater, TN | Not filled | Unknown |
| (423) 272 | Rogersville, TN | Hawkins | Landline |
| (423) 273 | Morristown, TN | Hamblen | Cell Number |
| (423) 274 | Bristol, TN | Sullivan | Landline |
| (423) 275 | Chattanooga, TN | Hamilton | Landline |
| (423) 276 | Kingsport, TN | Sullivan | Cell Number |
| (423) 277 | Morristown, TN | Hamblen | Cell Number |
| (423) 278 | Greeneville, TN | Greene | Landline |
| (423) 279 | Blountville, TN | Sullivan | Landline |
| (423) 280 | Chattanooga, TN | Hamilton | Cell Number |
| (423) 282 | Johnson City, TN | Washington | Landline |
| (423) 283 | Johnson City, TN | Washington | Landline |
| (423) 284 | Cleveland, TN | Bradley | Cell Number |
| (423) 285 | Dayton, TN | Rhea | Cell Number |
| (423) 286 | Oneida, TN | Scott | Landline |
| (423) 287 | Chattanooga, TN | Hamilton | Landline |
| (423) 288 | Kingsport, TN | Sullivan | Landline |
| (423) 289 | Morristown, TN | Hamblen | Landline |
| (423) 290 | Chattanooga, TN | Hamilton | Cell Number |
| (423) 291 | Mountain City, TN | Johnson | Cell Number |
| (423) 292 | Fall Branch, TN | Washington | Cell Number |
| (423) 293 | Rogersville, TN | Hawkins | Cell Number |
| (423) 294 | Chattanooga, TN | Hamilton | Landline |
| (423) 295 | Vonore, TN | Monroe | Landline |
| (423) 296 | Chattanooga, TN | Hamilton | Landline |
| (423) 297 | Elizabethton, TN | Carter | Landline |
| (423) 298 | Chattanooga, TN | Hamilton | Landline |
| (423) 299 | Benton, TN | Polk | Cell Number |
| (423) 300 | Sneedville, TN | Hancock | Cell Number |
| (423) 302 | Johnson City, TN | Not filled | Unknown |
| (423) 303 | Cleveland, TN | Bradley | Landline |
| (423) 304 | Chattanooga, TN | Hamilton | Cell Number |
| (423) 305 | Chattanooga, TN | Not filled | Unknown |
| (423) 306 | Kingsport, TN | Sullivan | Cell Number |
| (423) 307 | Morristown, TN | Hamblen | Landline |
| (423) 308 | Chattanooga, TN | Hamilton | Landline |
We have 600 Prefixes in our database.